Home / 399,070.18-598,714.62-199,149.22

Finding the Fourth Proportional to 399,070.18, 598,714.62 and 199,149.22

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Solution

The fourth proportional to 399,070.18, 598,714.62 and 199,149.22 is: 298,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,070.18 : 598,714.62 = 199,149.22 : x
  2. Step 2: Convert to fraction form
    399,070.18/598,714.62 = 199,149.22/x
  3. Step 3: Cross multiply
    399,070.18x = 598,714.62 × 199,149.22
  4. Step 4: Simplify right side
    399,070.18x = 119,233,549,575.60
  5. Step 5: Solve for x
    x = 119,233,549,575.60/399,070.18
  6. Step 6: Final answer
    x = 298,778.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.